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Chapter 3 91
21. Remove the four screws (C) holding the left and right speakers.
22. Remove the left and right speakers from the upper case.
Removing the USB Board
1. See “Removing the Battery Pack” on page 60.
2. See “Removing the SD dummy card” on page 60.
3. See “Removing the PC and ExpressCard dummy cards” on page 61.
4. See “Removing the Lower Cover” on page 62.
5. See “Removing the DIMM” on page 63.
6. See “Removing the WLAN Board Modules” on page 64.
7. See “Removing the Hard Disk Drive Module” on page 65.
8. See “Removing the Optical Drive Module” on page 66.
9. See “Removing the Modem Board” on page 70.
10. See “Removing the Heatsink Fan Module” on page 70.
11. See “Removing the CPU and VGA Heatsink Module” on page 71.
12. See “Removing the CPU” on page 73.
13. See “Removing the VGA board (for Discrete model only)” on page 73.
14. See “Removing the Middle Cover and the Power Board” on page 74.
15. See “Removing the Keyboard” on page 76.
16. See “Removing the LCD Module” on page 78.
17. See “Separating the Upper Case from the Lower Case” on page 81.
18. See “Removing the main board” on page 88.
Step Size (Quantity) Color Torque
1~4 M2 x L4 (4) Silver 1.6 kgf-cm
SG_Columbia.book Page 91 Thursday, April 19, 2007 10:49 AM